The only ones with him as an objective are Great Baggi and the triple monster quest with Thunder Giggi and Barioth unfortunately. He also appears as a random monster in a few Tundra quests (Thunder Giggi and Tigrex for example) but the only way to farm him is with at least one other high rank monster so the Great Baggi quest is your best choice.

Keep in mind that the quest rewards are 70% Baggi stuff, so you're better off killing the Uru.